Road marker



FIG. 1 is a perspective view, from above, of the front and rear of the road marker showing the present design;

FIG. 2 is a perspective side view, from above, of the road marker of FIG. 1;

FIG. 3 is a top view of the road marker of FIG. 1;

FIG. 4 is an elevational view of the front of the road marker of FIG. 1, the rear view thereof being the same;

FIG. 5 is an elevational view of the bottom of the road marker of FIG. 1; and,

FIG. 6 is an elevational right-side view of the road marker of FIG. 1, the left-side view thereof being the same. 

The ornamental design for a road marker, as shown and described. 